Joseph wolf



(No Model.)

J. WOLF. PLA'H LIGHT APPARATUs.

Patented Nov. 17, 1896.

' 'WWW rio 'UNITED STATES PATENT Price.

JOSEPII lVOLF, OF' ROCHESTER, NEXV YORK, ASSIGNOR OF ONE-HALE TO JOHN A.ROBERTSON AND ALBERT MUTSCHLER, OF SAME PLACE.

FLASH-LIGHT APPARATUS.

SPECIFICATION forming part of Letters Patent No. 571,632, dated November17', 1896. Application filedMay 7,1896. $erial No. 590,566. (No model.)

1b ((,ZZ 107mm, i; may concern:

Be it known that I, J osnPH WOLF, a citizen of Germany, residing atRochester, in the county of Monroe, in the State of New York, haveinvented an lniproved Flash-Light Apparatus, of which the following is aspecification, reference being had to the accoinpauying drawings.

Myinventiou rola-tes to au iinpi'oved flashlight apparatus, whichiinprovenient is fully describcd and illustrated in the followingspecification and the accoinpanying drawings, the novel features thereofbeing speciiied in the claiins annexed to the said specification.

My iinproved flash-light apparatus is represented in the accoinpanyingdrawings, in which- Figure l is a plan view. Fig. 2 is a side elevation.Fi g. is a central Vertical section on the line 3 8, Figs. 1 and 9. Fig.-l is an end eleration.

lily imp roved flash-light apparatus consists, essentially, of the airor gas supply pipe A, the reservoir l for conihustible powder, providedwith the niovable bottoin O, the con'- necting-pipe D, the f nnnel E,and wiek F.

lin the operation of the apparatus a blast of air or gas through thepipe A carries some of the ooinbustible powder through the pipe D anddischarges it against the opposite wall of the funnel, by which it isspread and distribnted so as to elnerge from the elongated month of thefunnel, where it is ignited and prod u ces a wide, brillian t, andpowerful fla-ine. By ele- Yating the niovable bottoin C in the reservoiras the comliustible powder is carried otf the duration of the flash maybe prolonged for a considerable period of time. The blast of air or gasmay be supplied in any suitable or preferred inanner.

The reservoir ll may be of any suitable shape or diinensions. lt isprovided at its upper end with the hreinovable cap or cover ll, throughwhich it is filled with the coinbustible powder. The pipes A and l) areinserted through the cap. The morable bottoui C is arranged to slide inthe reservoir. lt may, if preferred, be provided with a rod by which itis elevated as the powder is used up. The pipe D is arranged so as todeliver the powder carried by the air-blast against the inside of theopposite wall of the funnel E at K, Fig. 3, from which point it isspread and distributed throughout, the current of air expandinglaterally in the f unnel, so that it is diseharged from the month of thefunnel in a wide thin sheet in condition to aiford a flash of largesurface and great power. A suitable support F is arranged for the wiekalong or around the elongated month of the funnel E. As shown, thissupport consists of a trough l, attached to the funnel E and filled withany suitable kind of a wiek. The trough preferably extends along bothsides of the funnel, and thus the powder is blown directly through theiiainc, thereby insuringits entire colnbustion. In practicea l'ittlea-lcohol or other suitable liquid is poured on the wiek and i gnited andthe powder is then blowu through the iiaine. The reservoir is filledwith the coinb ustible powder, preferably powdered magnesiuin, nearly up to the tubes A and D, and as the powder is used u p, either by shortorprolonged fiashes, the bottoin C is raised upward, so as to inaiutainthe surface of the powder near the lower ends of the tuhes. It will,however, be understood that niy iniproved appa-ratus may be used with areservoir having a solid bottoni. It will also be understood that thena-rrow funnel with inclined sides and the tube connected with it so asto discharge the powder against the opposite side may be used inconnection with any suitable reservoir or iluid-supply device.

By the use of niy improved flash-light apparatus I secure a broad,brillia-nt, and powerful ilaine' of great illuininating power, and theduration of the flash may be prolonged to any extent required.

lI claim- 1. In a Hash-light apparatus, the powderreservoir, the adjustable bottoin for the same, the air or gas inlet pipe, a powder-exitpipe, a funnel, an igniting device, said inlet and exit pipesconnnnnicating directlyY with the upper surface of the powder and allcombined substantially as set forth whereb-7 the powder may bedischargod by a blast on its unobstructed surface, and the chargeinaintained at an approxiniately constant level, substantiallT asdescribed.

The combination of the reservoir having IOO a removable Cap providedwith an inlet andl its nnobstrueted surface,and the charge mainan exit,an air or gas inlet pipe, a powdertained at an approximately Constantlevel. io

exit pipe, both pipes terminat'ing in the cap, substantially asdeseribed.

a funnel and an igniting device, and an adjustable bottom, whereby thereservoii' can J'OSEPH TOLF' be sepai'ated from its Cap and pipes, andfilled Witnesses: v and the ppes and Cap replaced, and Whereby HOMERI-I. REICHENBACH,

the powder may be diseharged by a blast on GEO. B. SELDEN.

